JP3213237B2 - Edge structure of three blade razor - Google Patents
Edge structure of three blade razorInfo
- Publication number
- JP3213237B2 JP3213237B2 JP12579296A JP12579296A JP3213237B2 JP 3213237 B2 JP3213237 B2 JP 3213237B2 JP 12579296 A JP12579296 A JP 12579296A JP 12579296 A JP12579296 A JP 12579296A JP 3213237 B2 JP3213237 B2 JP 3213237B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- blade body
- distance
- reference plane
- cutting edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、三枚刃剃刀の各
刃体において、刃先部の突出距離の改良に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the protruding distance of a blade edge of a three-blade razor.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】ホルダ
の上端部に剃刀ヘッドを支持したいわゆるＴ型剃刀とし
ては、一枚刃のものや二枚刃のものや三枚刃のものなど
が知られている。これらのＴ型剃刀において、刃体の刃
先部の突出距離は、切れ味の維持と、感触の柔らかさと
に影響を与える。そこで、特に、切れ味の維持と感触の
柔らかさに優れた三枚刃剃刀に着目し、その使用時、切
れ味をより一層向上させるとともに、感触もより一層柔
らかくすることを目的にして改良を加えた。2. Description of the Related Art As a so-called T-shaped razor in which a razor head is supported at the upper end of a holder, there are known a single blade type, a double blade type and a three blade type. Have been. In these T-shaped razors, the protruding distance of the cutting edge of the blade affects the maintenance of sharpness and the softness of the touch. Therefore, in particular, we focused on a three-blade razor excellent in maintaining sharpness and softness of touch, and at the time of its use, while improving the sharpness further, we made improvements for the purpose of further softening the feel. .
【０００３】[0003]
【課題を解決するための手段】後記実施形態の図面（図
１）の符号を援用して本発明を説明する。本発明にかか
る三枚刃剃刀は、下記のように構成されている。The present invention will be described with reference to the reference numerals in the drawings (FIG. 1) of the following embodiments. The three blade razor according to the present invention is configured as follows.
【０００４】刃台（２）と天板（３）との間で下刃体
（４）と中刃体（５）と上刃体（６）とを挟着し、刃台
（２）の前側にあるガイド部（１０）と天板（３）の前
側にある挟持部（１３）との間で各刃体（４，５，６）
の刃先部（１４，１５，１６）を並設している。A lower blade body (4), a middle blade body (5) and an upper blade body (6) are sandwiched between a blade base (2) and a top plate (3), and the blade base (2) is Each blade body (4, 5, 6) is provided between the guide section (10) on the front side and the holding section (13) on the front side of the top plate (3).
The cutting edge portions (14, 15, 16) are arranged side by side.
【０００５】前記中刃体（５）の刃先部（１５）の尖端
縁（１５ａ）を通り且つ前記刃台（２）のガイド部（１
０）上に接する下刃体ひげ剃り基準平面（Ｐ）を想定
し、この下刃体ひげ剃り基準平面（Ｐ）に対する前記下
刃体（４）の刃先部（１４）の尖端縁（１４ａ）の突出
距離を（Ａ）とする。The guide portion (1) of the blade base (2) passes through the pointed edge (15a) of the blade edge (15) of the middle blade body (5).
0) Assuming a lower blade shaving reference plane (P) in contact with the upper side, a pointed edge (14a) of a cutting edge (14) of the lower blade (4) with respect to the lower blade shaving reference plane (P). Is defined as (A).
【０００６】前記上刃体（６）の刃先部（１６）の尖端
縁（１６ａ）を通り且つ前記下刃体（４）の刃先部（１
４）の尖端縁（１４ａ）を通る中刃体ひげ剃り基準平面
（Ｑ）を想定し、この中刃体ひげ剃り基準平面（Ｑ）に
対する前記中刃体（５）の刃先部（１５）の尖端縁（１
５ａ）の突出距離を（Ｂ）とする。The cutting edge (1) of the lower blade (4) passes through the sharp edge (16a) of the cutting edge (16) of the upper blade (6).
Assuming the middle blade shaving reference plane (Q) passing through the pointed edge (14a) of 4), the cutting edge (15) of the middle blade (5) with respect to this middle blade shaving reference plane (Q). Pointed edge (1
The projection distance of 5a) is defined as (B).
【０００７】前記中刃体（５）の刃先部（１５）の尖端
縁（１５ａ）を通り且つ前記天板（３）の挟持部（１
３）上に接する上刃体ひげ剃り基準平面（Ｒ）を想定
し、この上刃体ひげ剃り基準平面（Ｒ）に対する前記上
刃体（６）の刃先部（１６）の尖端縁（１６ａ）の突出
距離を（Ｃ）とする。[0007] The pinching portion (1) of the top plate (3) passes through the pointed edge (15a) of the cutting edge portion (15) of the middle blade body (5).
3) Assuming an upper blade shaving reference plane (R) contacting above, a pointed edge (16a) of a cutting edge (16) of the upper blade (6) with respect to the upper blade shaving reference plane (R). Is defined as (C).
【０００８】この場合、下記1)または2)または3)の関係
を有している。 1) 下刃体突出距離（Ａ）＞中刃体突出距離（Ｂ）＞上刃体突出距離（Ｃ） 2) 下刃体突出距離（Ａ）＝中刃体突出距離（Ｂ）＞上刃体突出距離（Ｃ） 3) 下刃体突出距離（Ａ）＞中刃体突出距離（Ｂ）＝上刃体突出距離（Ｃ）In this case, the following relationship 1) or 2) or 3) is satisfied. 1) Lower blade projecting distance (A)> Middle blade projecting distance (B)> Upper blade projecting distance (C) 2) Lower blade projecting distance (A) = Middle blade projecting distance (B)> Upper blade Body protruding distance (C) 3) Lower blade protruding distance (A)> Middle blade protruding distance (B) = Upper blade protruding distance (C)
【０００９】[0009]
【発明の実施形態】以下、本発明の一実施形態にかかる
三枚刃剃刀を図１を参照して説明する。 （三枚刃剃刀の概略構造について）この剃刀において
は、図示しないホルダの上端部に剃刀ヘッド１が着脱可
能に支持される。この剃刀ヘッド１は、刃台２と天板３
と下刃体４と中刃体５と上刃体６と下スペーサ７と上ス
ペーサ８とからなる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A three blade razor according to an embodiment of the present invention will be described below with reference to FIG. (About the schematic structure of a three-blade razor) In this razor, a razor head 1 is detachably supported on the upper end of a holder (not shown). The razor head 1 comprises a blade base 2 and a top plate 3
, Lower blade 4, middle blade 5, upper blade 6, lower spacer 7, and upper spacer 8.
【００１０】刃台２においては、載置台部９の前側にガ
イド部１０がひげかす排除孔１１を介して形成されてい
る。天板３においては、その下側にかしめピン１２が突
設され、このかしめピン１２よりも前側で挟持部１３が
形成されている。In the blade base 2, a guide part 10 is formed in front of the mounting base part 9 through a shaving exclusion hole 11. The top plate 3 is provided with a caulking pin 12 projecting below it, and a holding portion 13 is formed in front of the caulking pin 12.
【００１１】前記刃台２の載置台部９上に下刃体４と下
スペーサ７と中刃体５と上スペーサ８と上刃体６とが順
次載せられて重合され、それらに天板３のかしめピン１
２が挿着されて各刃体４，５，６及び各スペーサ７，８
が載置台部９と天板３との間で挟着されている。The lower blade 4, lower spacer 7, middle blade 5, upper spacer 8, and upper blade 6 are sequentially placed on the mounting table 9 of the blade base 2, and are superimposed on each other. Nothing pin 1
2 are inserted, and each blade body 4, 5, 6 and each spacer 7, 8
Are sandwiched between the mounting table 9 and the top plate 3.
【００１２】各刃体４，５，６の刃先部１４，１５，１
６は、各スペーサ７，８により所定間隔を持たせて、刃
台２のガイド部１０と天板３の挟持部１３との間で並設
されている。各刃体４，５，６は平板状をなし、その刃
先部１４，１５，１６に尖端縁１４ａ，１５ａ，１６ａ
が直線状に形成されて互いに平行に延設されている。The blade portions 14, 15, 1 of the blade bodies 4, 5, 6
Numerals 6 are juxtaposed between the guide portion 10 of the blade base 2 and the holding portion 13 of the top plate 3 at a predetermined interval by the spacers 7 and 8. Each of the blades 4, 5, and 6 has a flat plate shape, and its cutting edges 14, 15, 16 have sharp edges 14a, 15a, 16a.
Are formed linearly and extend in parallel with each other.
【００１３】（刃先構造の詳細について）前記中刃体５
の刃先部１５の尖端縁１５ａを通り且つ前記刃台２のガ
イド部１０上の接点Ｐ10に接する下刃体ひげ剃り基準平
面Ｐを想定する。そして、この下刃体ひげ剃り基準平面
Ｐに対する前記下刃体４の刃先部１４の尖端縁１４ａの
突出距離（この尖端縁１４ａを通りこの基準平面Ｐに対
し平行に延びる平面がこの基準平面Ｐに対しなす距離）
をＡとする。(Details of the blade edge structure) The middle blade body 5
Assume a reference plane P shaving lower blade beard in contact with the contact point P 10 on the guide portion 10 of the tip edge 15a of the street and the blade base 2 of the cutting edge 15 of the. The protruding distance of the sharp edge 14a of the cutting edge portion 14 of the lower blade body 4 with respect to the lower blade shaving reference plane P (the plane extending parallel to the reference plane P through the sharp edge 14a is the reference plane P). Distance to
Is A.
【００１４】前記上刃体６の刃先部１６の尖端縁１６ａ
を通り且つ前記下刃体４の刃先部１４の尖端縁１４ａを
通る中刃体ひげ剃り基準平面Ｑを想定する。そして、こ
の中刃体ひげ剃り基準平面Ｑに対する前記中刃体５の刃
先部１５の尖端縁１５ａの突出距離（この尖端縁１５ａ
を通りこの基準平面Ｑに対し平行に延びる平面がこの基
準平面Ｑに対しなす距離）をＢとする。The pointed edge 16a of the cutting edge 16 of the upper blade 6
And a medium blade shaving reference plane Q passing through the pointed edge 14a of the cutting edge portion 14 of the lower blade body 4 is assumed. Then, the projecting distance of the pointed edge 15a of the cutting edge 15 of the middle blade body 5 from the middle blade shaving reference plane Q (this pointed edge 15a
Is defined as B, the distance that a plane passing through and extending parallel to the reference plane Q makes with the reference plane Q).
【００１５】前記中刃体５の刃先部１５の尖端縁１５ａ
を通り且つ前記天板３の挟持部１３上の接点Ｒ13に接す
る上刃体ひげ剃り基準平面Ｒを想定する。そして、この
上刃体ひげ剃り基準平面Ｒに対する前記上刃体６の刃先
部１６の尖端縁１６ａの突出距離（この尖端縁１６ａを
通りこの基準平面Ｒに対し平行に延びる平面がこの基準
平面Ｒに対しなす距離）をＣとする。The pointed edge 15a of the cutting edge 15 of the middle blade body 5
The street and assume a blade shaving reference plane R on the contact with the contact R 13 on clamping portion 13 of the top plate 3. The protruding distance of the pointed edge 16a of the cutting edge 16 of the upper blade body 6 with respect to the upper blade shaving reference plane R (the plane extending parallel to the reference plane R through the pointed edge 16a is the reference plane R Is defined as C.
【００１６】前記下刃体突出距離Ａと中刃体突出距離Ｂ
と上刃体突出距離Ｃは、下記1)または2)または3)の関係
を有する。 1) 下刃体突出距離Ａ＞中刃体突出距離Ｂ＞上刃体突出距離Ｃ 2) 下刃体突出距離Ａ＝中刃体突出距離Ｂ＞上刃体突出距離Ｃ 3) 下刃体突出距離Ａ＞中刃体突出距離Ｂ＝上刃体突出距離Ｃ ちなみに、下刃体突出距離Ａは１００μ±２５μ（＋１
２５μ〜＋７５μ）に、中刃体突出距離Ｂは５０μ±２
５μ（＋７５μ〜＋２５μ）に、上刃体突出距離Ｃは０
μ±２５μ（＋２５μ〜−２５μ）になっている。な
お、下刃体４の刃先部１４の厚さと中刃体５の刃先部１
５の厚さと上刃体６の刃先部１６の厚さとは、互いにほ
ぼ等しく設定され、０．０８ｍｍ〜０．１２ｍｍになっ
ている。また、下刃体４の刃先部１４の刃先角度と中刃
体５の刃先部１５の刃先角度と上刃体６の刃先部１６の
刃先角度とは、互いにほぼ等しく設定され、１８°〜２
６°になっている。The lower blade body protrusion distance A and the middle blade body protrusion distance B
And the upper blade body projection distance C have the following relationship 1), 2) or 3). 1) Lower blade body protrusion distance A> Middle blade body protrusion distance B> Upper blade body protrusion distance C 2) Lower blade body protrusion distance A = Middle blade body protrusion distance B> Upper blade body protrusion distance C 3) Lower blade body protrusion Distance A> Middle blade projecting distance B = Upper blade projecting distance C Incidentally, lower blade projecting distance A is 100 μ ± 25 μ (+1
25μ to + 75μ), the middle blade protrusion distance B is 50μ ± 2
5 μ (+75 μ to +25 μ), the upper blade projecting distance C is 0
μ ± 25μ (+ 25μ to −25μ). The thickness of the cutting edge 14 of the lower blade 4 and the cutting edge 1 of the middle blade 5
The thickness of the blade 5 and the thickness of the cutting edge 16 of the upper blade body 6 are set substantially equal to each other, and are 0.08 mm to 0.12 mm. The cutting edge angle of the cutting edge portion 14 of the lower blade body 4, the cutting edge angle of the cutting edge portion 15 of the middle blade body 5, and the cutting edge angle of the cutting edge portion 16 of the upper blade body 6 are set substantially equal to each other.
6 °.
【００１７】互いに平行に延びる各刃体４，５，６の載
置平面Ｈ4 ，Ｈ5 ，Ｈ6 に対し垂直で且つ前記ガイド部
１０上の接点Ｐ10、挟持部１３上の接点Ｒ13及び各尖端
縁１４ａ，１５ａ，１６ａを通る鉛直平面Ｖ10，Ｖ13，
Ｖ14，Ｖ15，Ｖ16を想定する。そして、各尖端縁１４
ａ，１５ａ，１６ａ上の鉛直平面Ｖ14，Ｖ15，Ｖ16は両
接点Ｐ10，Ｒ13上の鉛直平面Ｖ10，Ｖ13間に位置し、接
点Ｐ10上の鉛直平面Ｖ10に対する各尖端縁１４ａ，１５
ａ，１６ａ上の鉛直平面Ｖ14，Ｖ15，Ｖ16及び接点Ｒ13
上の鉛直平面Ｖ13の距離をそれぞれＬ14，Ｌ15，Ｌ16，
Ｌ13とした場合、Ｌ14＜Ｌ15＜Ｌ16＜Ｌ13の関係を有し
ている。The contact point P 10 on the guide portion 10 and the contact point R 13 on the holding portion 13 are perpendicular to the mounting planes H 4 , H 5 , H 6 of the blade bodies 4, 5, 6 extending parallel to each other. And vertical planes V 10 , V 13 , passing through the respective sharp edges 14a, 15a, 16a,
It is assumed that V 14, V 15, V 16 . And each pointed edge 14
a, 15a, vertical plane V 14 on 16a, V 15, V 16 is located between the contacts P 10, vertical plane V 10 on R 13, V 13, each with respect to the vertical plane V 10 on the contacts P 10 Pointed edges 14a, 15
a, vertical plane V 14 on 16a, V 15, V 16 and contacts R 13
The distance above the vertical plane V 13 each L 14, L 15, L 16 ,
If the L 13, have a relationship of L 14 <L 15 <L 16 <L 13.
【００１８】本実施形態は下記（イ）〜（ロ）の特徴を
有する。 （イ） 顔面に剃刀ヘッド１を当てがってひげを剃る
時、剃刀ヘッド１を上から下へ移動させると、まず前記
下刃体ひげ剃り基準平面Ｐが顔面に沿い、下刃体４の尖
端縁１４ａによりひげが切断される。次に、中刃体ひげ
剃り基準平面Ｑが顔面に沿い、中刃体５の尖端縁１５ａ
によりひげが切断される。最後に、上刃体ひげ剃り基準
平面Ｒが顔面に沿い、上刃体６の尖端縁１６ａによりひ
げが切断される。This embodiment has the following features (a) to (b). (A) When the razor head 1 is applied to the face to shave, when the razor head 1 is moved from top to bottom, first, the lower blade shaving reference plane P follows the face and the lower blade 4 The beard is cut by the sharp edge 14a. Next, the middle blade shaving reference plane Q is along the face, and the sharp edge 15a of the middle blade 5 is formed.
Cuts the beard. Finally, the upper blade shaving reference plane R is along the face, and the beard is cut by the pointed edge 16a of the upper blade 6.
【００１９】例えば、前述したように、下刃体突出距離
Ａ＞中刃体突出距離Ｂ＞上刃体突出距離Ｃの関係にある
場合、最も突出距離Ａの大きい下刃体４が最初にひげを
剃るので、硬いひげ（倒れにくいひげ）でも切れ味は良
くなるが、皮膚に対して切断抵抗があるために感触はさ
ほど良くない。しかし、硬いひげでも一度剃ったものは
かなり短くなるので、中刃体５の突出距離Ｂは下刃体４
の突出距離Ａより小さくても良く、逆に感触は良くな
る。さらに、下刃体４及び中刃体５により二度剃ったひ
げはより一層短くなるので、上刃体６の突出距離Ｃは中
刃体５の突出距離Ｂより小さくても良く、逆に感触はよ
り一層良くなる。従って、剃刀ヘッド１を剃り下ろすに
従い、次第に皮膚に対する切断抵抗がなくなって感触が
柔らかくなる。その場合でも、下刃体４と中刃体５と上
刃体６とによる三度のひげ剃り動作により、切れ味も維
持することができる。For example, as described above, when the lower blade body protrusion distance A> the middle blade body protrusion distance B> the upper blade body protrusion distance C, the lower blade body 4 having the largest protrusion distance A first has a beard. Because of the shaving, the sharpness is improved even with a hard beard (a beard that is hard to fall), but the feeling is not so good because of the cut resistance to the skin. However, even if a hard beard is shaved once, the protruding distance B of the middle blade 5 is smaller than that of the lower blade 4.
May be smaller than the protruding distance A, and conversely, the feel is improved. Further, since the beard shaved twice by the lower blade body 4 and the middle blade body 5 is further shortened, the protrusion distance C of the upper blade body 6 may be smaller than the protrusion distance B of the middle blade body 5, and conversely Will be even better. Therefore, as the razor head 1 is shaved down, the cutting resistance to the skin gradually disappears and the feel becomes soft. Even in that case, sharpness can be maintained by the three shaving operations by the lower blade body 4, the middle blade body 5, and the upper blade body 6.
【００２０】（ロ） 一方、前述したように、下刃体突
出距離Ａ＝中刃体突出距離Ｂ＞上刃体突出距離Ｃの関係
にある場合には、下刃体突出距離Ａと中刃体突出距離Ｂ
とが等しいので、下刃体４と中刃体５とでは感触の差が
さほど生じないかもしれないが、下刃体４及び中刃体５
と比較して上刃体６の感触は確実に良くなる。また、前
述したように、下刃体突出距離Ａ＞中刃体突出距離Ｂ＝
上刃体突出距離Ｃの関係にある場合には、中刃体突出距
離Ｂと上刃体突出距離Ｃとが等しいので、中刃体５と上
刃体６とでは感触の差がさほど生じないかもしれない
が、下刃体４と比較して中刃体５及び上刃体６の感触は
確実に良くなる。いずれにしても、下刃体４と中刃体５
と上刃体６とによる三度のひげ剃り動作により、切れ味
も維持することができる点は相違がない。(B) On the other hand, as described above, when the lower blade body protrusion distance A = the middle blade body protrusion distance B> the upper blade body protrusion distance C, the lower blade body protrusion distance A and the middle blade Body protrusion distance B
May not be so different between the lower blade body 4 and the middle blade body 5, but the lower blade body 4 and the middle blade body 5
The touch of the upper blade body 6 is surely improved as compared with the case of FIG. As described above, the lower blade body projection distance A> the middle blade body projection distance B =
In the case of the relationship of the upper blade body projecting distance C, the middle blade body projecting distance B and the upper blade body projecting distance C are equal. Although it may be, the feel of the middle blade body 5 and the upper blade body 6 is certainly improved as compared with the lower blade body 4. In any case, the lower blade body 4 and the middle blade body 5
There is no difference in that sharpness can be maintained by the three shaving operations by the upper blade body 6 and the upper blade body 6.
【００２１】[0021]
【発明の効果】本発明にかかる三枚刃剃刀によれば、使
用時、切れ味を向上させることができるばかりではな
く、感触も柔らかくすることができる。According to the three-blade razor of the present invention, not only can the sharpness be improved when used, but also the feel can be softened.
【図１】 本実施形態に係る三枚刃剃刀の剃刀ヘッドを
示す断面図である。FIG. 1 is a sectional view showing a razor head of a three-blade razor according to the present embodiment.
１…剃刀ヘッド、２…刃台、３…天板、４…下刃体、５
…中刃体、６…上刃体、１０…ガイド部、１３…挟持
部、１４，１５，１６…刃先部、１４ａ，１５ａ，１６
ａ…尖端縁、Ｐ…下刃体ひげ剃り基準平面、Ｑ…中刃体
ひげ剃り基準平面、Ｒ…上刃体ひげ剃り基準平面、Ａ…
下刃体突出距離、Ｂ…中刃体突出距離、Ｃ…上刃体突出
距離。DESCRIPTION OF SYMBOLS 1 ... Razor head, 2 ... Blade base, 3 ... Top plate, 4 ... Lower blade body, 5
... Medium blade body, 6 ... Top blade body, 10 ... Guide part , 13 ... Nipping part, 14, 15, 16 ... Blade tip part, 14a, 15a, 16
a: Sharp edge, P: Lower blade shaving reference plane, Q: Middle blade shaving reference plane, R: Upper blade shaving reference plane, A ...
Lower blade body protrusion distance, B: middle blade body protrusion distance, C: upper blade body protrusion distance.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B26B 21/22 B26B 21/14 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B26B 21/22 B26B 21/14
Claims (1)
（４）と中刃体（５）と上刃体（６）とを挟着し、刃台
（２）の前側にあるガイド部（１０）と天板（３）の前
側にある挟持部（１３）との間で各刃体（４，５，６）
の刃先部（１４，１５，１６）を並設した三枚刃剃刀に
おいて、 前記中刃体（５）の刃先部（１５）の尖端縁（１５ａ）
を通り且つ前記刃台（２）のガイド部（１０）上に接す
る下刃体ひげ剃り基準平面（Ｐ）を想定し、この下刃体
ひげ剃り基準平面（Ｐ）に対する前記下刃体（４）の刃
先部（１４）の尖端縁（１４ａ）の突出距離を（Ａ）と
し、 前記上刃体（６）の刃先部（１６）の尖端縁（１６ａ）
を通り且つ前記下刃体（４）の刃先部（１４）の尖端縁
（１４ａ）を通る中刃体ひげ剃り基準平面（Ｑ）を想定
し、この中刃体ひげ剃り基準平面（Ｑ）に対する前記中
刃体（５）の刃先部（１５）の尖端縁（１５ａ）の突出
距離を（Ｂ）とし、 前記中刃体（５）の刃先部（１５）の尖端縁（１５ａ）
を通り且つ前記天板（３）の挟持部（１３）上に接する
上刃体ひげ剃り基準平面（Ｒ）を想定し、この上刃体ひ
げ剃り基準平面（Ｒ）に対する前記上刃体（６）の刃先
部（１６）の尖端縁（１６ａ）の突出距離を（Ｃ）とし
た場合、下記1)または2)または3)の関係を有することを
特徴とする三枚刃剃刀における刃先構造。 1) 下刃体突出距離（Ａ）＞中刃体突出距離（Ｂ）＞上刃体突出距離（Ｃ） 2) 下刃体突出距離（Ａ）＝中刃体突出距離（Ｂ）＞上刃体突出距離（Ｃ） 3) 下刃体突出距離（Ａ）＞中刃体突出距離（Ｂ）＝上刃体突出距離（Ｃ）A lower blade (4), a middle blade (5), and an upper blade (6) are sandwiched between a blade base (2) and a top plate (3). ) Between the guide portion (10) on the front side and the holding portion (13) on the front side of the top plate (3).
A three-blade razor having a plurality of blade tips (14, 15, 16) arranged side by side, comprising: a pointed edge (15a) of a blade edge (15) of the middle blade body (5);
And a lower blade body shaving reference plane (P) passing through and in contact with the guide portion (10) of the blade base (2), and the lower blade body (4) with respect to the lower blade body shaving reference plane (P) is assumed. The protruding distance of the pointed edge (14a) of the cutting edge portion (14) is defined as (A), and the pointed edge (16a) of the cutting edge portion (16) of the upper blade body (6).
And a shaving reference plane (Q) passing through the pointed edge (14a) of the cutting edge portion (14) of the lower blade body (4), and with respect to this shaving reference plane (Q). The projecting distance of the pointed edge (15a) of the cutting edge (15) of the middle blade body (5) is (B), and the pointed edge (15a) of the cutting edge (15) of the middle blade body (5).
The upper blade body shaving reference plane (R) is assumed to pass through the upper blade body shaving reference plane (R) through the holding portion (13) of the top plate (3), and the upper blade body (6) with respect to the upper blade body shaving reference plane (R) is assumed. The cutting edge structure for a three-blade razor characterized by the following relationship 1), 2) or 3), where (C) represents the projecting distance of the pointed edge (16a) of the cutting edge portion (16). 1) Lower blade projecting distance (A)> Middle blade projecting distance (B)> Upper blade projecting distance (C) 2) Lower blade projecting distance (A) = Middle blade projecting distance (B)> Upper blade Body protruding distance (C) 3) Lower blade protruding distance (A)> Middle blade protruding distance (B) = Upper blade protruding distance (C)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12579296A JP3213237B2 (en) | 1996-05-21 | 1996-05-21 | Edge structure of three blade razor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12579296A JP3213237B2 (en) | 1996-05-21 | 1996-05-21 | Edge structure of three blade razor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09308779A JPH09308779A (en) | 1997-12-02 |
| JP3213237B2 true JP3213237B2 (en) | 2001-10-02 |
Family
ID=14918991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12579296A Expired - Lifetime JP3213237B2 (en) | 1996-05-21 | 1996-05-21 | Edge structure of three blade razor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3213237B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005261544A (en) * | 2004-03-17 | 2005-09-29 | Kai R & D Center Co Ltd | Safety razor |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6112412A (en) * | 1999-04-21 | 2000-09-05 | Warner-Lambert Company | Razor assembly and cartridge having improved wash-through |
| US6182366B1 (en) | 1999-04-21 | 2001-02-06 | Warner-Lambert Company | Flexible razor assembly and cartridge |
| US6138361A (en) * | 1999-04-21 | 2000-10-31 | Warner-Lambert Company | Pivotable razor assembly and cartridge |
| US6772523B1 (en) | 1999-04-21 | 2004-08-10 | Eveready Battery Company, Inc. | Pivotable and flexible razor assembly and cartridge |
| KR102063770B1 (en) * | 2018-07-27 | 2020-01-08 | 주식회사 도루코 | Razor cartridge |
-
1996
- 1996-05-21 JP JP12579296A patent/JP3213237B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005261544A (en) * | 2004-03-17 | 2005-09-29 | Kai R & D Center Co Ltd | Safety razor |
| JP4598419B2 (en) * | 2004-03-17 | 2010-12-15 | 株式会社貝印刃物開発センター | Safety razor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09308779A (en) | 1997-12-02 |
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